Dust collector



June 30, 1953 N. c. SHELLMAN 2,643,733

' DUST COLLECTOR Filed July 14, 1949 INVENTOR.

A95 Jn/ag.

Patented June 30,` 195.3

DUST COLLECTOR vNorman C. Shellman, Rye, N. Y.,.assignor of one halfto Edward H. Yonkers, Jr., Glencoe, Ill.

Application July 14, 1949, Serial No. 104,735

This invention relates to certain new and use ful improvements in dust collectors for suction type cleaners and has for its principal "object the provision of an improved construction which Will be highly-efficient in use and economical in manufacture.

An important object of this invention is the provision of an arrangement which facilitates the removal of the collected dust and dirt from the collector. 'Cleaners of the type generally in use embody a flexible cloth bag arranged Within the collector housingr and connected thereto by means of a ring disposed beneath the cap attached to the bag and held by said cap in position upon the housing. When the cloth bag of this type of cleaner is to be removed, the cap of the housing is removed and the operator then grasps the ring attached to the collector to withdraw the bag from the collector housing. As a certain amount of dust and other particles are deposited on the exterior of this bag, it is clear that in removing the bag, most if not all the loose dust and dirt on the exterior of the bag becomes detached from the bag during theremoval operation. In addition, by reason of the flexibility of this bag, in order for the contents therein to be removed the bag must be grasped by the hands and vigorously shaken, thus transporting a certain amount of the dust and dirt from the bag onto the hands and Wearing apparel of the operator. If this shaking of the bag is done indoors, dust is released for redistribution over the floor and household goods and furniture.

My invention has for its object an arrangement which will overcome the foregoing objectionable features, an arrangement, which will permit the removal of the dust collector without v scattering or disturbing the dust therein and one which will permit the removal of the collected dust and dirt from the collector by the simple operation of releasing a gravity-actuated clean-cut door provided as a part of the structure of the dust collector.

Other objects will appear hereinafter.

The invention consists in the novel combination and arrangement of parts to be hereinafter described and claimed.

The invention will be best understood by reference to the accompanying drawings showing the preferred form of construction, and in which:

Fig. l is a side elevational view of a conventional cleaner with which my invention is associated;

Fig. 2 is a part sectional side elevational view of the same;

Fig. i3 is a sectional detail View takenv substantially on line 3 3 of Fig. 2;

Fig. 4 is a fragmentary sectional detail View similar to Fig. 2 showing a slightly modified form of construction Fig. 5 is an end view of the dust collector shown in Fig. 4; and

Fig. 6 is a perspective part sectional view of the dust collector embodied in the invention shown in Fig. 4:.

The conventionalsuction cleaner now com-'- mercially in use is illustrated in Fig. 1. This cleaner comprises a suction hose I0, one end of which is frictionally insertable in a nipple Ii provided as an integral part .of a cap I2 having a handle i 3. This cap I2 is mounted to close one end of the housing I4 supported by the conventional runners I5 for movement over the surface being operated upon. Within this housing I4 is arranged the standard and conventional motor It which functions in a manner well-known' in the art to create the suction through the hose Iii, to which hose Il] are attached in a well known manner theusual and conventional cleaning 'appliances (not shown) It is this type of suction cleaner with which my invention is preferably related.

In this connection the cap I2 has a flange I'I which provides an annular groove I8 in the base of which is mounted a rubber ring I9 for sealing purposes. Thiscap I2 is removably connected to the `housing I4 by the standard and conventional latch ngers 20. The cap I2 provides an annular ange 2| which nts into the open end of a dust collector 23 and is secured thereto by suitable rivets 22 or the like. This dust collector is preferably formed of light metal, such as aluminum or the like. It provides a longitudinally extending opening 24 normally closed by a perforated plate 25. This plate 25 is removably connected to adjacent walls of the collector' 23 by a knuckle and pintle construction 26 or by any suitable means which will permit ready detachment of the plate 25 from the collector 23. Secured to this plate 25 in any suitable manner and extending over the opening 24 is a lter member or cloth 2l. This filter member 2l may be of any approved construction to filter the air escaping from the housing and remove therefrom all particles of dust and dirt, thus blocking the passage of such dust and dirt from within the collector 23. In the present instance, this lter is in the form of a nely woven cloth.

The bottom wall of the collector provides a clean-out door 29 hinged as at 30 to the end wall 28. A spring clip 3U is secured by welding or aliavse 3 the like or by any other means to the collector 2-3, and this clip provides a latch head 3l serving to removably latch the door 29 in a closed position.

In this form of construction it will be particularly noted that the collector is attached to the cap I2 so that when the cap l2 is removed from the housingr i4 the collector 23 will be removed therewith. After the removal of the collector 23 from the housing il all that is necessary to remove the collected dust and dirt is to hold the collector in a position such that upon release of the spring clip 30 from the door 29, the door 29 by gravity moves into open position, freeing the collected dust and dirt from the collector 23, it being noted that as the interior surfaces of the collector are smooth the dirt in this gravity discharge operation will not cling to the collector as it would where a cloth bag is used.

In the modified form of construction shown in Figs. 4 to 6 inclusive, the collector 23 has a closure 32. The closure 32 provides an annular laterally extending flange 33 which abuts the adjacent edge 34 of the housing. I4. Disposed within a gasket receiving recess 33 formed in the cap l2 is a gasket ring I9' which kbears against the outer surface of the flange 33 to effect a complete seal between the housing I4 and the cap I2. The closure 32 provides an intake port 35 of curved formation with one end 1 registering with the intake port 39 of the outer cap I2 and which latter port communicates with the hose (not shown). The other end of this port is disposed adjacent the filter cloth 21 for reasons hereinafter set forth. The intake port Y35 is formed to provide an elongated transversely extending mouth 3l of a sufficient size to permit the fingers of the hand to be inserted therein whereby to remove the collector 23 from the housing I4. The collector 23 in this form of construction is otherwise substantially the same as the collector 23 in the form of construction shown in Fig. 2, and in this connection like reference numerals will be used to indicate similar parts.

If found desirable, a plurality of rods 36 may be arranged in parallel spaced relation with respect to each other with their ends secured in a suitable manner to the collector and extending lengthwise within the opening 24' to serve as a support for the filter 21 to maintain the same from collapsing.

The intake through the nipple ll (Fig. l) and the intake port 35 are related to the filter cloth ln a manner such that the air wipes against the cloth and by reason thereof tends to keep the cloth clean, freeing particles of dust and dirt which would otherwise cling thereto.

From the foregoing description it willbe clear that I have provided a cleaner in which there is arranged a collector which may be easily removed from within the housing and after removal therefrom the collected dirt and other matter can be quickly removed therefrom in a clean sanitary manner.

While I have illustrated and described the preferred form of construction for carrying my invention into effect, this is capable of variation and modification without departing from the spirit ofthe invention. I, therefore, do not wish to be limited to the precise details of construction set forth, but desire to avail myself of such variations and modifications as come within the scope of the appended claim.

Having thus vdescribed my invention, what I claim as new and desire to protect by Letters Patent is:

A device of the class described comprising an elongated housing substantially circular in cross section and having a suction motor arranged within and at one end portion thereof, a suction intake cap removably secured to the housing at the end opposite said one end portion and having an opening therethrough extending substantially parallel with and at one side of the transverse axis of the cap, a collector substantially elongated and circular in cross section removably arranged within the housing and supported therein by the cap with the side walls thereof in parallel spaced relation to the side walls of the housing, said collector having an elongated opening formed in its side walls in its upper half portion, a filter plate hingedly secured to the collector and closing said opening, said collector having an end wall the lower half of which provides an opening, and a trap door closing the opening of said end wall, said opening of said cap having its long axis on a line parallel and adjacent to the inner surface of the filter plate to direct air directly from said opening across said inner surface to remove dirt particles or the like therefrom.

NORMAN C. SHELLMAN.

References Cited in the le of this patent UNITED STATES PATENTS Miller June 14, 1949 

